Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Preferred Stock [Member]	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning balance at Dec. 31, 2013	$ 70,787	$ 132,099	$ 167,136	$ 1,900	$ 371,922
Beginning balance, shares at Dec. 31, 2013		19,680
Net income			5,676		5,676
Cash dividends declared ($0.08 per common share)			(1,574)		(1,574)
Preferred dividends			(217)		(217)
Stock-based compensation		116			116
Stock-based compensation, shares		15
Other comprehensive income (loss)				164	164
Ending balance at Mar. 31, 2014	70,787	132,215	171,021	2,064	376,087
Ending balance, shares at Mar. 31, 2014		19,695			19,695,316
Beginning balance at Dec. 31, 2014	70,787	132,532	184,958	(578)	387,699
Beginning balance, shares at Dec. 31, 2014		19,710			19,709,881
Net income			6,988		6,988
Cash dividends declared ($0.08 per common share)			(1,579)		(1,579)
Preferred dividends			(217)		(217)
Stock-based compensation		220			220
Stock-based compensation, shares		30
Other comprehensive income (loss)				133	133
Ending balance at Mar. 31, 2015	$ 70,787	$ 132,752	$ 190,150	$ (445)	$ 393,244
Ending balance, shares at Mar. 31, 2015		19,740			19,740,183